Welcome to our site!

Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Capacitive vs resistive screens

picbits

Well-Known Member
Capacitive all the time (unless it was in an environment which could cause issues with capacitive touchscreens) but why the question ?
 

rjenkinsgb

Well-Known Member
Most Helpful Member
I want to know if the iPad is a capacitive screen? Some ipads are available with iPad pencils, so what is the principle of iPad pencils?
ipads use capacitive screens for normal touch operation.

Capacitive screens are more versatile that resistive ones as they do not need pressure to operate; dragging or zooming etc. are easy on a capacitive screen, while I'm not sure if any resistive ones support that type of multi-finger operation at all?


The Apple Pencil, from what I've seen and what I can find online, is a "digitiser" stylus (eg. inductive coupling, not capacitive) with extra features for pressure & gesture sensing. That's presumably why it can only work with certain ipad models, that have the digitiser array included in the screen.

It appears Apple licence the digitiser tech from Wacom.

Digitisers, originally as separate tablets for such as creating or digitising engineering drawings, rather than integrated with screens, have been around since the 70s. A "puck" rather than stylus was common, combining mouse style buttons and a cross-hair alignment area for high accuracy.

Dual-mode screens are not that new and certainly not an Apple innovation, as my 10+ year old CF19 laptop has a touch + digitiser stylus screen.
 

Latest threads

EE World Online Articles

Loading
Top